Aqueous Alteration of Smectite in Acid-Sulfate Fluids: Implications for Clay Mineralogy at Gale CraterThe Chemistry and Mineralogy (CheMin) instrument on the Mars Science Laboratory (MSL) Rover, Curiosity, analyzes samples collected in Gale Crater, Mars using X-ray diffraction (XRD). One site of interest is the Oudam drill sample that CheMin analyzed on sols 1362, 1365, and 1369, which contains ~3 wt% phyllosilicate. XRD analysis of this phyllosilicate suggests a 2:1 Fe3+-smectite, akin to nontronite.
Document ID
20180004263
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Authors
Rudolph, A. N. (University of Western Washington Bellingham, WA, United States)
Craig, P. I. (Lunar and Planetary Inst. Houston, TX, United States)
Rampe, E. B. (NASA Johnson Space Center Houston, TX, United States)
Hogancamp, J. V. (Jacobs Technology, Inc. Houston, TX, United States)